FUNSR PRO: The Most Powerful Stroke Device, Featuring Joint Motors, Is Launched

So basically including pitch axis, 3 joint motors, 1 stepper motor are used? (L,R,pitch) and twister (stepper)

If so, if one of them breaks down, you’ll spend a lot of money on repairs

And, is the default position always guaranteed the same? I wonder if there is an absolute encoder on the output shaft or only a variable encoder on the motor side

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absolute encoder

The more I read about device, if it lives up to the promise, its a definite buy. Will wait and see

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Actually, this situation doesn’t exist. The reason is that the motor’s limitations mean it can’t reach the required level with my power supply. So when the motor encounters extremely high resistance, it will stop—not because the motor has no remaining capacity, but because the current is insufficient.

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I’m sorry, I’m not fully understanding.

What we are interested in, is what happens after the motor has stopped and the full current is running through it. Are you saying, that the Power Supply isn’t hitting the lower threshold of existing temperature protections of the controller? Or that the protections are not implemented on the controller side?

Also: How much power does the power supply deliver?

You need to underpower it 6x (150kg/25kg) to get equivalent of 25kg servo
It’s rated for 2.5x stall over regular work, so if it’s 3x underpowered it already cannot overheat by design

Well… if they are trying to use 3kg sleeves, I really hope they put more power into it than a 25kg servo. For reference, I did some measurements on my OSR2+Twist + Valve with servos and wouldn’t recommend anything below 65W for those. And that wasn’t with heavy sleeves or very fast scripts. Only problem is: More power in → more heat out. which is why I actively cool mine.

That being said, I went back and saw that they did a 1.5 h test with 1 kg load and an integrated fan and registered barely any temperature change. Which tells me, that indeed they are far from the motor’s limit and the safety features (if implemented) don’t have to intervene.

Single motor rated power is ~65W so I assume it uses 65w or 100w changer for 3 of them (+twist)

Here's a random spec from internet (may not match used motor)
  • Nominal voltage: 24 V
  • Voltage range: 16–28 V
  • Rated power: 65 W
  • Gear ratio: 8:1 (planetary)
  • Rated torque (continuous): 5 N·m ≈ 51 kg·cm
  • Stall torque (peak): 11 N·m ≈ 112 kg·cm (which is lower then abovetold 150)
  • Rated speed after reduction: 120 rpm
  • Max speed after reduction (no-load): 420 rpm
  • Nominal current: 10.5 A
  • Stall current: 25 A

Seems like the motor to go with. Power and silence. Ill wait for Tempest using them. This here for sure is great for someone who can not build himself.

I just went through the thread again and found this:

So if I’m reading this right, they use a Gim6010 from Steadywin-Motor:

Spec Sheet

I also “only” see a torque of nominally 50 kgcm and a (temperature, current, voltage, speed constrained) peak torque of 110 kgcm. And for the rated power, depending on the driver board and voltage it’s 252W or 138 W per motor. Sooo… yeah, especially with the integrated fan (good decision btw!) and the version with the higher torque constant, it’s probably no problem at all. I do wonder though, whether the driver would de-rate at some point, if you supply it with more power (insert grunting noises here ^^) .


To highlight another aspect: The rated speed is given at 120 (220 rpm) and max. of 420 (554 rpm).

Simple calculations. CW: Maths

Divide it by 60, to get the revolutions per second. For a nominal range the OSR moves 60°, i.e. one sixth of a revolution, so multiply by 6. Times 100 for units/seconds. So in total multiply times 10 for the peak speed in units/s for the standard range.

So you get rated 1200/2200 units/s, max 4200/5540 units/s peak speeds. Which isn’t the speed in OFS, because it has to accelerate and brake, but still very promising values for the fans of high speeds and/or vibrations (hope your lube is heat-resistant :grin:)


Absolutely. And if the system is designed well, then it’s also durable.Just make sure the clamp is sturdy and that everything is bolted down, or you might end the session in the living room :grin:. I’d be more worried that some mechanical part or a cable breaks, than that the motor goes up in smoke. The complexity of the motor and driver/controller does cost you in the beginning, but if done well, it will be less money and headaches over the whole lifecycle.

What can happen depending on how the gears are designed and depending on the sleeves and scripts used, is that with the years, the play (technical term “backlash”) of the gear can increase, and with it, the noise (and heat). You might hear the difference on industrial robots that run 24/7 if you know, what you’re looking for. I personally don’t think it to be critical for this use case though, since for robotic joints, they usually design it for high shocks.

Has anyone heard anything about shipping dates for early bird purchasers?

Currently, one of the accessories is out of stock, resulting in delayed shipments. The current progress is as follows: a batch was shipped this Monday, another batch yesterday, and a third batch is expected to be shipped in the first half of next week. This way, all orders placed around early November will be shipped out.

Say I place an order now, what would be the expected shipment date?

I’m not sure. If everything goes smoothly, it will probably take 2 to 3 weeks.

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right on, thanks for the response. Guess mine that was paid for on 10/23/25 wasnt shipped in these batches as I have no notifications in my email. Except the order confirmation

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Wait can this device be modified to even control a hip? Like a 20 pound hip?

Mine (ordered first day I think) is on its way. It seemed to be shipped on Wednesday and despite an initially over-optimistic estimate of getting from Shanghai to UK by Friday morning, it’s now expected on Monday. I’ve watched it track from Shanghai to Korea to Dubai and it’s now left Germany, so Monday is looking very realistic. It’s certainly seen more of the world than I have!

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Theoretically yes
Practically you gonna start hitting the limit of your table stability lol
(and power adapter has to be 3 times stronger, and wires may be too weak for 3x power, and how are you even going to hold a 9kg hip?)

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Oh definitely, I imagine a steel table would suffice. Like in their video I see that it was able to control it fairly well. I am also curious as to the cost of something like that since I do have a hip.

Poppin in to say I have got my unit. Will want to make a review but I can’t catch a breather atm to write anything lengthy. I should be able to do it next month.

So far I found the motors very impressive at being silent and smooth. I will still do a sound test and take the decibel reading and compare. Stay tuned if you are interested.

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